1. One who, or that which, strikes; specifically, a blacksmith's helper who wieds the sledge.
2. A harpoon; also, a harpooner. Wherever we come to an anchor, we always send out our strikers, and put out hooks and lines overboard, to try fish. (Dampier)
3. A wencher; a lewd man.
4. A workman who is on a strike.
5. A blackmailer in politics; also, one whose political influence can be bought.
6. A utensel that has a rock to strike the metal it is used in a laboratory to start a bunsen burner